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Journal Articles

Defect structure analysis of heterointerface between Pt and CeO$$_{rm x}$$ promoter on Pt electro-catalyst

Fugane, Keisuke*; Mori, Toshiyuki*; Yan, P.*; Masuda, Takuya*; Yamamoto, Shunya; Ye, F.*; Yoshikawa, Hideki*; Auchterlonie, G.*; Drennan, J.*

ACS Applied Materials & Interfaces, 7(4), p.2698 - 2707, 2015/02

 Times Cited Count:21 Percentile:29.84(Nanoscience & Nanotechnology)

no abstracts in English

Journal Articles

Role of cerium oxide in the enhancement of activity for the oxygen reduction reaction at Pt-CeO$$_{x}$$ nanocomposite electrocatalyst; An in situ electrochemical X-ray absorption fine structure study

Masuda, Takuya*; Fukumitsu, Hitoshi*; Fugane, Keisuke*; Togasaki, Hirotaka*; Matsumura, Daiju; Tamura, Kazuhisa; Nishihata, Yasuo; Yoshikawa, Hideki*; Kobayashi, Keisuke*; Mori, Toshiyuki*; et al.

Journal of Physical Chemistry C, 116(18), p.10098 - 10102, 2012/05

 Times Cited Count:88 Percentile:6.2(Chemistry, Physical)

In situ electrochemical X-ray absorption fine structure (XAFS) measurements were performed at the Pt L$$_{3}$$ and Ce L$$_{3}$$ edges of the Pt-CeO$$_{x}$$/C catalyst, which was prepared by a combined process of precipitation and coimpregnation methods, as well as at the Pt L$$_{3}$$ edge of the conventional Pt/C catalyst in oxygen-saturated H$$_{2}$$SO$$_{4}$$ solution to clarify the role of CeO$$_{x}$$ in the reduction of the overpotential for the oxygen reduction reaction (ORR) at the Pt-CeO$$_{x}$$ nanocomposite compared with the conventional Pt/C catalyst. XAFS measurements clearly show that the enhancement of ORR activity is attributed to the inhibition of Pt oxide formation by the CeO$$_{x}$$ layer, of which Ce$$^{3+}$$ was oxidized to Ce$$^{4+}$$ instead of Pt at the Pt oxide formation potential.

Oral presentation

Analysis of transport properties of charge induced in SOI structure devices by heavy ion irradiation

Onishi, Kazunori*; Takahashi, Yoshihiro*; Nakajima, Yasuhito*; Nagasawa, Takaharu*; Fugane, Masaru; Imagawa, Ryo*; Nomoto, Keisuke*; Hirao, Toshio; Onoda, Shinobu; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Heavy-ion induced gate current in MOSFET

Fugane, Masaru; Takahashi, Yoshihiro*; Nakajima, Yasuhito*; Nagasawa, Takaharu*; Imagawa, Ryo*; Nomoto, Keisuke*; Onishi, Kazunori*; Hirao, Toshio; Onoda, Shinobu; Oshima, Takeshi

no journal, , 

no abstracts in English

Oral presentation

Investigation of oxygen reduction reaction (ORR)on Pt-CeO$$_{x}$$ model interface for polymer electrolyte fuel cells

Fugane, Keisuke*; Mori, Toshiyuki*; Masuda, Takuya*; Uosaki, Kohei*; Yamamoto, Shunya; Maekawa, Yasunari

no journal, , 

no abstracts in English

Oral presentation

Effect of electrochemical pre-treatment and interface structure between Pt and CeO$$_{x}$$ for improvement of oxygen reduction reaction activity on Pt-CeO$$_{x}$$ model electro catalysis

Fugane, Keisuke*; Mori, Toshiyuki*; Wu, Y. Y.*; Yamamoto, Shunya; Maekawa, Yasunari; Yoshikawa, Hideki*; Yamashita, Yoshiyuki*; Ueda, Shigenori*; Vladimir, M.*; Suzuki, Akira*; et al.

no journal, , 

no abstracts in English

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